Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21097987 (number)

21097987 is an odd 8-digits composite number following 21097986 and preceding 21097988. In scientific notation, it is written as 2.1097987 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 20740336 positive integers (up to 21097987) that are relatively prime to 21097987.

Interesting facts

21097987 has 4 divisors, whose sum is 21455640
The reverse of 21097987 is 78979012
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty-one million ninety-seven thousand nine hundred eighty-seven

Notation

Scientific notation	2.1097987 × 10^7
Engineering notation	2.1097987 × 10^6

Prime Factorization of 21097987

Prime Factorization 59 × 357593

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21097987	Product of the distinct prime numbers

The prime factorization of 21097987 is 59 × 357593. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 9, 36, 88, 994, 166, 1118, 8525, 85523, 58262, 257357, 100981, 5808176, 6247155, 91958013, 9281448, 740836984, 606582566, 8037613259, 5267780232

Basic calculations (n = 21097987)

Multiplication

n×y

n×2	42195974
n×3	63293961
n×4	84391948
n×5	105489935

Division

n÷y

n÷2	10548993.5
n÷3	7032662.3333333
n÷3	5274496.75
n÷5	4219597.4

Exponentiation

n^y

n²	445125055452169
n³	9.3912426333041E+21
n⁴	1.981363149913E+29
n⁵	4.1802773979143E+36

Nth Root

^y√n

²√n	4593.2545106928
³√n	276.32086100124
⁴√n	67.773553180373
⁵√n	29.164074842681

Divisors of 21097987

1, 59, 357593, 21097987

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21097986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21097987 can be divided by 4 positive divisors. The sum of these divisors (counting 21097987) is 1, the average is 0.25.

Base conversion 21097987

Base	System	Value
2	Binary	1010000011110111000000011
3	Ternary	1110200212222221
4	Quaternary	1100132320003
5	Quinary	20400113422
6	Senary	2032111511
8	Octal	120367003
10	Decimal	21097987
12	Duodecimal	7095597
16	Hexadecimal	141ee03
20	Vigesimal	6bh4j7
36	Base36	ck7b7

Cryptographic Hash Functions

md5	9362840ad487c61a3690183cece46f08
sha1	dc2ffef578d8885883385bf47abb1c16e73cae72
sha256	fe1bbc301b11a613955073b6c269ccbf2773c63622495e4cf26397ffe30f85bb
sha512	3700f467de29ac0ef9963b155b2ae55b5b0df733aad14d14d39cae1fa2bcc33e5966d8469e750fb6151f4f0f94514364f12223a63aeafffd2c6c85ef7f2d7ce3
ripemd-160	a4a88fe9f4d9f4cd7ed5ba0aa4c56ac183918446

21097987 as geometric shapes

Circle

Radius = n

Diameter	42195974
Circumference	132562561.92947
Area	1.3984016041373E+15

Sphere

Radius = n

Volume	3.9337945153157E+22
Surface area	5.5936064165491E+15
Circumference	132562561.92947

Square

Length = n

Perimeter	84391948
Area	445125055452169
Diagonal	29837059.354171

Cube

Length = n

Surface area	2670750332713014
Volume	9.3912426333041E+21
Space diagonal	36542785.421428

Equilateral Triangle

Length = n

Perimeter	63293961
Area	1.9274480294127E+14
Altitude	18271392.710714

Triangular Pyramid

Length = n

Surface area	1.9274480294127E+14
Volume	1.1067685582963E+21
Height	9945686.4513904